A margin formula that banks generally apply to loans, on the basis of a line of credit, is:

Group of answer choices

a. 30 percent of the value of accounts receivable plus 15 percent of inventory

b. 10 percent of the value of accounts receivable plus 60 percent of inventory

c. 20 percent of the value of accountants receivable plus 20 percent of inventory

d. 50 to 80 percent of the value of accounts receivable plus 50 percent of the value of inventory